Is AD 2011-20-09 a recurring Airworthiness Directive?

No — AD 2011-20-09 is a one-time directive. Verify it was complied with in the aircraft's records.

Airworthiness Directive 2011-20-09

Q: Which aircraft does AD 2011-20-09 apply to?

AD 2011-20-09 applies to Airbus — models A300 B2-1A, A300 B2-1C, A300 B2K-3C, A300 B2-203, A300 B4-2C, A300 B4-103, A300 B4-203, A300 B4-601. Serial/part conditions may narrow it to specific aircraft.

one-time

Official AD 2011-20-09 · FR doc 2011-25308 · 2011-10-05 · airframe

Airworthiness Directives; Airbus Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for all Airbus Model A300 series airplanes; Model A310 series airplanes; and Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model C4- 605R Variant F airplanes (collectively called A300-600 series airplanes). This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: * * * * * A recent analysis conducted by the manufacturer showed a particular risk for explosive failure of the * * * hydraulic accumulator. This condition, if not detected and corrected, might, for some aeroplane installations, lead to damage to all three hydraulic circuits, possibly resulting in loss of control of the aeroplane or could, for certain other aeroplane installations, lead to an undetected fire in the wheel bay. * * * * * We are issuing this AD to require actions to correct the unsafe condition on these products.

Which aircraft AD 2011-20-09 applies to

MakesAirbus

ModelsA300 B2-1A, A300 B2-1C, A300 B2K-3C, A300 B2-203, A300 B4-2C, A300 B4-103, A300 B4-203, A300 B4-601, A300 B4-603, A300 B4-620, A300 B4-622, A300 B4-605R, A300 B4-622R, A300 F4-605R, A300 F4-622R, A300 C4-605R Variant F, A310-203, A310-204, A310-221, A310-222, A310-304, A310-322, A310-324, A310-325, A300, A310

Whether AD 2011-20-09 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

How AD compliance is recorded

A valid compliance record (14 CFR 43.9) states:

Method of compliance — The specific action taken (inspected, replaced, modified) and to what revision.

Date — When the work was done.

Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.

Signature & certificate — The A&P/IA who returned it to service, with certificate number.

Is AD 2011-20-09 complied with on your aircraft?

Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.

Look up a tail number →Read the full directive (Federal Register)

Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.